<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src='https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js'></script>
    <script src='https://cdn.bootcdn.net/ajax/libs/jquery/3.6.4/jquery.min.js'></script>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
</head>
<body>
<div class="container">
    <div class="row">
        <h1 class="text-center ">注册页面</h1>
        <form action="" method="post">
            <div  >
                用户名：<input type="text" name = 'username' class="form-control form-group">
            </div>
            <div >
                密码：<input type="password" name = 'password' class=" form-group form-control">
            </div>
            <div >
                <input type="submit" class="btn btn-primary btn-block" >
            </div>

        </form>
    </div>
</div>

</body>
</html>